diff --git a/src/requirements.txt b/src/requirements.txt
index 1603d8e83..c880ade6b 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -11,6 +11,10 @@ html5lib
 slimit
 lxml
 
+# Polyfill for Python <3.4
+# Remove this, when Python 3.3 support is dropped
+flufl.enum
+
 # Debugging requirements
 django-debug-toolbar
 
diff --git a/src/tixlbase/plugins.py b/src/tixlbase/plugins.py
index a7c588616..1989694e3 100644
--- a/src/tixlbase/plugins.py
+++ b/src/tixlbase/plugins.py
@@ -1,4 +1,7 @@
-from enum import Enum
+try:
+    from enum import Enum
+except ImportError:
+    from flufl.enum import Enum
 
 from django.apps import apps